I am just a novice, but to me this is a great example of balance. You couldn't have set this photo up better if you had hired these guys and told them exactly what to do. Love how one guy is on the side of the bench, while the other is in the middle. And to balance that out... he has his satchel placed to create 'balance'.
Wow. This is such a powerful photograph to me. Interesting contrasts. affluence & poverty, comfort (one bench has backrest, other does not), tech (mac vs. pen and paper), race (black vs white), age (youth vs. old) the leaf (one next to foot, the other displaced) . Great photo.